NHTSA owner reports · September 18, 2026 snapshot.
Electronic Stability Control (esc) complaints
14 reportsClear category filter25,000 miles · Nov 1, 2020
Electrical SystemElectronic Stability Control (esc)Power Train
THIS VEHICLE IS SO UNSAFE . I HAD LOTS OF DIFFERENT SITUATIONS HAPPEN AND WHEN I TAKE IT TO THE DEALERSHIP THEY CHECK IT AND SAY IT'S FINE ! THE VEHICLE STALLS AND HESITATES AND I GET SENSORS GOING OFF CONSTANTLY INCLUDING THE BRAKE SENSOR WHEN THERE IS NOTHING IN FRONT OF ME FOR IT TO GO OFF . I'VE HAD THE VEHICLE GO IN PARK …
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THIS VEHICLE IS SO UNSAFE . I HAD LOTS OF DIFFERENT SITUATIONS HAPPEN AND WHEN I TAKE IT TO THE DEALERSHIP THEY CHECK IT AND SAY IT'S FINE ! THE VEHICLE STALLS AND HESITATES AND I GET SENSORS GOING OFF CONSTANTLY INCLUDING THE BRAKE SENSOR WHEN THERE IS NOTHING IN FRONT OF ME FOR IT TO GO OFF . I'VE HAD THE VEHICLE GO IN PARK BY ITSELF WHILE ON A LIGHT. THE VEHICLE DOESN'T START AND ALWAYS NEEDS A JUMP I GOT THE BATTERY CHECKED MULTIPLE TIMES AND THE DEALERSHIP TOLD ME MY BATTERY IS GOOD AND I HAVE TO CHARGE IT . I BELIEVE THERE IS AN ELECTRICAL ISSUE WITH THIS VEHICLE . MY VEHICLE ONLY HAS 30,000 MILES I HAVE ALL MY MAINTENANCE DONE AT THE DEALERSHIP ON TIME I PURCHASED THIS VEHICLE THINKING IT'S RELIABLE BEING I'M A MOTHER OF TWO KIDS!
NHTSA ODI #11372554
50,000 miles · Oct 28, 2020
Air BagsElectrical SystemElectronic Stability Control (esc)
CAR WON'T CRANK AND WON'T START. ENDED UP STRANDED NUMEROUS TIMES WITHIN THE LAST 2 MONTHS WHILE OUT SHOPPING. EACH TIME STRANDED, THE CAR WOULD START AFTER BEING JUMPED BY ANOTHER VEHICLE EACH TIME. AFTER THE FIRST ACCOUNT OF BEING STRANDED AND JUMPED BY ANOTHER VEHICLE, I IMMEDIATELY DROVE TO THE DEALERSHIP AND WAS TOLD BY THE…
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CAR WON'T CRANK AND WON'T START. ENDED UP STRANDED NUMEROUS TIMES WITHIN THE LAST 2 MONTHS WHILE OUT SHOPPING. EACH TIME STRANDED, THE CAR WOULD START AFTER BEING JUMPED BY ANOTHER VEHICLE EACH TIME. AFTER THE FIRST ACCOUNT OF BEING STRANDED AND JUMPED BY ANOTHER VEHICLE, I IMMEDIATELY DROVE TO THE DEALERSHIP AND WAS TOLD BY THE DEALERSHIP THAT MY CAR BATTERY WAS TESTING "VERY GOOD" AND THEY SAID MY BATTERY WOULD RECHARGE ITSELF AND THAT THE DRAINAGE COULD BE DUE TO THE HOT TEXAS WEATHER. NOT SO MUCH THE CASE AS I ENDED UP STRANDED TWO DAYS AFTER THAT, ONCE AGAIN. THEN, A WEEK OR SO LATER, ON ANOTHER ACCOUNT OF BEING STRANDED AND JUMPED STARTED BY ANOTHER VEHICLE, I DROVE TO AUTOZONE TO HAVE THEM TEST MY BATTERY TO FIND THAT IT THEN TOO TESTED "VERY GOOD." AUTOZONE SUGGESTED THAT I PURCHASE A PORTABLE CAR CHARGER, SO I DID. CAME TO FIND OUT THAT UPON BEING STRANDED THE FOURTH TIME, THE PORTABLE CHARGER WAS UNABLE TO GET ME JUMPED/STARTED. SO, I HAD TO CALL ROADSIDE ASSISTANCE. ROADSIDE ASSISTANCE TRIED USING "THEIR" PORTABLE CAR CHARGER BUT FAILED TO WORK. SO THE REP PULLED OUT HIS JUMPER CABLES AND WAS ABLE TO JUMP MY CAR AFTER ABOUT 5 MINUTES. AT THAT POINT, I WENT BACK TO AUTOZONE AND DECIDED TO PURCHASE A NEW CAR BATTERY EVEN THOUGH MY EXISTING BATTERY TESTED "VERY GOOD" ONCE AGAIN. IMMEDIATELY FOLLOWING THE BATTERY REPLACEMENT, MY SRS AIRBAG LIGHT BECAME ILLUMINATED AND HAS BEEN ON SINCE THEN. IT'S BEEN 3 WEEKS SINCE I'VE HAD THE NEW BATTER INSTALLED AND I'M NOW STRANDED AGAIN. I'VE SEEN WAY TOOO MANY POSTS WITH OTHER FOLKS EXPERIENCING THIS SAME ISSUE. PLEASE INVESTIGATE!!!!!
NHTSA ODI #11366844
21,000 miles · Aug 27, 2020
Electronic Stability Control (esc)Engine
CAR STALLED WHILE STOPPING AT TRAFFIC LIGHT TWICE IN TWO WEEKS. BOTH TIMES CAR SHUT OFF COMPLETELY. I HAD TO PUT IT IN PARK AND THEN RESTART THE CAR. THIS IS A SAFETY CONCERN.
NHTSA ODI #11351544
66,571 miles · Apr 22, 2020
Electronic Stability Control (esc)Power Train
TL* THE CONTACT OWNS A 2015 ACURA TLX. THE CONTACT STATED THAT WHILE DRIVING AT 30 MPH, THE TRANSMISSION LIGHT, THE VEHICLE STABILITY ASSIST (VSA) AND THE PRECISION ALL WHEEL STEER SYSTEM WARNING MESSAGES ILLUMINATED. THE VEHICLE STARTED TO LOSE MOTIVE POWER WITH THE ACCELERATOR PEDAL DEPRESSED. THE VEHICLE WAS NOT DIAGNOSED NOR…
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TL* THE CONTACT OWNS A 2015 ACURA TLX. THE CONTACT STATED THAT WHILE DRIVING AT 30 MPH, THE TRANSMISSION LIGHT, THE VEHICLE STABILITY ASSIST (VSA) AND THE PRECISION ALL WHEEL STEER SYSTEM WARNING MESSAGES ILLUMINATED. THE VEHICLE STARTED TO LOSE MOTIVE POWER WITH THE ACCELERATOR PEDAL DEPRESSED. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. NEITHER THE DEALER NOR THE MANUFACTURER WERE NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 66,571.
NHTSA ODI #11321962
5,000 miles · Dec 4, 2019
Electrical SystemElectronic Stability Control (esc)Engine
THE CAR AUTOMATICALLY SWITCHES TO NEUTRAL AND SHUTS OFF WHILE DRIVING. I BOUGHT THE CAR BRAND NEW FROM JOHN EAGLE ACURA AND HAVE HAD THIS PROBLEM THE ENTIRE TIME THAT I HAVE OWNED THE VEHICLE. THE DEALERSHIP REPLACED THE TRANSMISSION AND STARTER ON THE CAR LESS THAN 3 MONTHS AFTER PRUCHASE. THE CAR CONTINUES TO SWITCH GEARS O…
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THE CAR AUTOMATICALLY SWITCHES TO NEUTRAL AND SHUTS OFF WHILE DRIVING. I BOUGHT THE CAR BRAND NEW FROM JOHN EAGLE ACURA AND HAVE HAD THIS PROBLEM THE ENTIRE TIME THAT I HAVE OWNED THE VEHICLE. THE DEALERSHIP REPLACED THE TRANSMISSION AND STARTER ON THE CAR LESS THAN 3 MONTHS AFTER PRUCHASE. THE CAR CONTINUES TO SWITCH GEARS ON ITS OWN AND SHUTS OFF! THE DEALERSHIP SAYS THAT NOTHING IS WRONG WITH THE CAR. PLEASE BEAWARE THIS CAR IS NOT SAFE TO DRIVE!!!
NHTSA ODI #11286887
38,500 miles · Sep 5, 2019
Electrical SystemElectronic Stability Control (esc)Steering
THE VSA PROBLEM LIGHT & FORWARD COLLISION WARNING PROBLEM LIGHT CAME UP WHILE DRIVING AND THE VEHICLE STOPPED & STALLS ALL IN A SUDDEN. NOT SURE IF THIS IS A SAFETY ISSUE, BUT ALMOST GOT INTO A CAR ACCIDENT. PLEASE HELP! THANK YOU
NHTSA ODI #11253325
70,000 miles · Sep 2, 2019
Electronic Stability Control (esc)EngineSteering
2015 ACURA TLX 2.4 MODEL HAS JERKING BETWEEN 1 AND 3RD GEAR. WHILE DRIVING ON A HIGHWAY IF FEELS AS IF THE WHEEL ALIGNMENT IS OFF HAD A WHEEL ALIGNMENT DONE DIDN'T FIX PROBLEM. STEERING WHEEL NEEDS TO BE HELD AT AN ANGLE TO DRIVE STRAIGHT. WHEN TRYING TO START THE CAR I'LL HEAR A CLICKING SOUND INSTEAD OF IT STARTING. NEEDS A JU…
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2015 ACURA TLX 2.4 MODEL HAS JERKING BETWEEN 1 AND 3RD GEAR. WHILE DRIVING ON A HIGHWAY IF FEELS AS IF THE WHEEL ALIGNMENT IS OFF HAD A WHEEL ALIGNMENT DONE DIDN'T FIX PROBLEM. STEERING WHEEL NEEDS TO BE HELD AT AN ANGLE TO DRIVE STRAIGHT. WHEN TRYING TO START THE CAR I'LL HEAR A CLICKING SOUND INSTEAD OF IT STARTING. NEEDS A JUMP TO START HAPPENED 3 TIMES ALREADY. BATTERY WAS TESTED RESULTS THAT I HAVE GOOD BATTER LIFE.
NHTSA ODI #11252788
30 miles · May 4, 2018
Electrical SystemElectronic Stability Control (esc)Fuel/propulsion System
THE ONBOARD SYSTEM CRASHED WHILE I WAS DRIVING. ALL THE WARNINGS ON THE DASH WENT OFF. THE CAR AUTOMATICALLY WENT INTO PARK. WHEN I PLACED THE CAR INTO DRIVE MODE THE PARKING BRAKE WOULD NOT DISENGAGE. I TURNED OFF AND ON MY CAR THE ISSUES PERSISTED. AFTER I TURNED OFF AND ON MY CAR A THIRD TIME THE CAR ALLOWED ME TO DRIVE IT.
NHTSA ODI #11091680
14,000 miles · Jul 20, 2017
Electrical SystemElectronic Stability Control (esc)Service Brakes
WHILE DRIVING AT 45MPH THE CAR LOST POWER I.E., STEERING, BRAKES, STABILITY CONTROL AND TRANSMISSION AND WAS UNABLE TO UNLOCK PARKING BRAKE
NHTSA ODI #11006549
15,000 miles · Nov 11, 2016
Electrical SystemElectronic Stability Control (esc)Engine
MY NAME IS [XXX] , IN 2014 I WALKED INTO MARIN ACURA (LOCATED IN MARIN, CALIFORNIA) AND LEASED A 2015 ACURA TLX. THIS WAS ESPECIALLY AN EXCITING MODEL DUE TO IT REDESIGN. WITHIN THE FIRST YEAR OF MY LEASE I RECEIVED A RECALL LETTER IN THE MAIL STATING THAT THEIR WAS A DEFECT IN REGARDS TO THE TRANSMISSION. I BROUGHT THE VEHICLE …
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MY NAME IS [XXX] , IN 2014 I WALKED INTO MARIN ACURA (LOCATED IN MARIN, CALIFORNIA) AND LEASED A 2015 ACURA TLX. THIS WAS ESPECIALLY AN EXCITING MODEL DUE TO IT REDESIGN. WITHIN THE FIRST YEAR OF MY LEASE I RECEIVED A RECALL LETTER IN THE MAIL STATING THAT THEIR WAS A DEFECT IN REGARDS TO THE TRANSMISSION. I BROUGHT THE VEHICLE TO THE DEALER AND THEY "FIXED" IT AND SENT ME ON MY WAY. ONE YEAR LATER, AGAIN, I RECEIVED A LETTER IN THE MAIL FROM THE AUTOMOBILE DEVISION LOCATED AT YOUR CORPORATE HEADQUARTERS AT 1919 TORRANCE BLVD, CA (NHTSA RECALL # 16V-640). THE LETTER CLEARLY STATES ?IF THIS MALFUNCTION WERE TO OCCUR, IT COULD RESULT IN AN UNEXPECTED LOSS OF MOTOR POWER, WHICH COULD REDUCE VEHICLE CONTROL AND INCREASES THE RISK OF A CRASH?. IT ALSO STATES THAT THE ?FIX? WILL BECOME AVAILABLE DECEMBER 2016, TODAYS DATE IS NOVEMBER 7TH, 2016. I HAVE BEEN DRIVING THIS VEHICLE FOR 2 OUT OF MY 3 YEAR LEASE AND THE TRANSMISSION HAS BEEN RECALLED TWICE CONSISTENTLY EVERY YEAR. I HAVE PUT MY TWO CHILDREN AND WIFE INTO THIS VEHICLE NOW KNOWING THAT THE CAR COULD HAVE POSSIBLY PUT MY FAMILY AND MYSELF IN PHYSICAL DANGER AND EVEN DEATH. NOT BECAUSE DRIVING IS DANGEROUS BUT BECAUSE THERE HAVE BEEN MANUFACTURING DEFECTS WITH THE TRANSMISSION OF THIS ACURA MODEL AND YEAR. I CANNOT DESCRIBE WHAT IT FEELS LIKE TO HAVE THAT ON THE MIND OF A PARENT. I SEE THIS BEING HANDLED IN ONE WAY. ACURA TAKES AWAY THE CAR AND REFUNDS ME MY TOTAL VEHICLE LEASE INVESTMENT ALONG WITH MY DOWN PAYMENT. PLEASE TAKE THIS MATTER INTO SERIOUS CONSIDERATION AS I AM FULLY PREPARED TO LEGALLY ESCALATE THIS MATTER BEYOND THE CONSUMER-COMPANY LEVEL. I CAN'T IMAGINE HOW MANY ACURA 2015 TLXS THERE ARE NATION WIDE. THIS EXPERIENCE HAS BEEN A DISASTER FINANCIALLY, EMOTIONALLY AND ACCORDING TO ACURA POTENTIALLY PHYSICALLY. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
NHTSA ODI #10925534
Official recalls
6Dec 18, 2023
Honda (American Honda Motor Co.) is recalling certain 2013-2023 Honda Accord, Civic Coupe, Civic Sedan, Civic Hatchback, Civic Type R, CR-V, HR-V, Ridgeline, Odyssey, Acura ILX, MDX, MDX Hybrid, RDX, RLX, TLX, 2019-2022 Honda Insight, Passport, 2020 Honda CR-V Hybrid, 2018-2019 Honda Clarity PHEV, Fit, and 2015-2020 Honda Accord Hybrid, Pilot, Acura NSX vehicles. The fuel pump inside the fuel tank may fail.
Consequence & remedy
Consequence: Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.
Remedy: Dealers will replace the fuel pump module, free of charge. Owner letters were mailed September 6, 2024. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall are KGC and KGD. This recall is an expansion of NHTSA recall numbers 21V-215 and 20V-314.
Nov 13, 2023
Honda (American Honda Motor Co.) is recalling certain 2015-2020 Acura TLX, 2016-2020 Acura MDX, 2016 and 2018-2019 Pilot, 2017 and 2019 Ridgeline, and 2018-2019 Odyssey vehicles. Due to a manufacturing error, the connecting rod bearing in the engine may wear and seize, damaging the engine.
Consequence & remedy
Consequence: A damaged engine may run improperly or stall while driving, increasing the risk of a fire, crash, or injury.
Remedy: Dealers will inspect and repair, or replace the engine as necessary, free of charge. Owner letters were mailed March 28, 2024. 2016-2017 Acura MDX owner letters were mailed November 1, 2024. 2016-2020 Acura MDX owner letters are expected to be mailed in mid-December 2024. Honda began mailing owner notification letters as of March 18, 2024. 2015-2016 Acura owner letters are expected to be mailed mid-December 2024, 2018 Acura TLX owner letters are expected to be mailed the end of March/early April 2024, 2019 Acura TLX owner letters are expected to be mailed mid-May 2024, 2020 Acura TLX owner letters are expected to be mailed mid-June 2024, and 2016-2020 Acura MDX owner letters are expected to be mailed January 27, 2025. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for these recalls are XG1 and GG0.
Jan 29, 2019
Honda (American Honda Motor Co.) is recalling certain 2016-2018 Acura MDX, 2015-2019 Acura TLX and 2015-2017 Honda Accord vehicles, equipped with a 3.5L V6 engine. Particulates in fuel may adhere to the internal components of the fuel pump, reducing its performance.
Consequence & remedy
Consequence: Reduced fuel pump performance can result in an engine stall, increasing the risk of crash.
Remedy: Honda will notify owners, and dealers will update the fuel injection engine control unit (FI-ECU) software and, if necessary, replace the fuel pump, free of charge. The recall began March 25, 2019. Owners may contact customer service at 1-888-234-2138. Acura's recall number for this recall is P3W. Honda's recall number for this recall is N3X.
Sep 6, 2016
Honda (American Honda Motor Co.) is recalling certain model year 2015 Acura TLX 2WD and 4WD vehicles. In the affected vehicles, the transmission wire harness connections may have insufficient crimps, and, as a result, the transmission may unexpectedly shift to neutral.
Consequence & remedy
Consequence: If the vehicle unexpectedly shifts to neutral, there is an increased risk of a crash.
Remedy: Acura has notified owners, and dealers will, based on the automatic transmission serial number, update the transmission software to prevent the transmission from shifting into neutral due to a faulty crimp, free of charge. The recall began January 13, 2017. Owners may contact Acura Client Relations at 1-888-234-2138. Honda's number for this recall is KC2.
Dec 8, 2014
American Honda Motor Co. (Honda) is recalling certain model year 2015 Acura TLX V6 2WD vehicles manufactured July 14, 2014, to November 12, 2014, and certain 2015 TLX V6 SH-AWD vehicles manufactured August 26, 2014, to November 10, 2014. The automatic transmission parking pawl may become contaminated or the park rod may become dislodged or broken. This may prevent the transmission from shifting into the Park position.
Consequence & remedy
Consequence: If the shift indicator displays "Park" but the park lock does not engage, the vehicle may roll away increasing the risk of a crash.
Remedy: Honda will notify owners, and dealers will inspect and replace the transmission if necessary, free of charge. The recall began January 30, 2015. Owners may contact Honda customer service at 1-310-783-2000. Honda's number for this recall is JM8.
Oct 1, 2014
American Honda Motor Co. (Honda) is recalling certain model year 2015 Acura TLX AWD vehicles manufactured August 26, 2014, to September 20, 2014. The affected vehicles may have incorrect values for the Gross Vehicle Weight Rating (GVWR) and Gross Axle Weight Rating (GAWR) front and rear printed on the safety certification label. As such, the vehicles do not conform to Part 567, "Certification."
Consequence & remedy
Consequence: If the vehicle is loaded to the specifications listed on the label, tire failure may result, increasing the risk of a crash.
Remedy: Honda will notify owners, and dealers will install a corrected certification label, free of charge. The recall is expected to begin on October 21, 2014. Owners may contact Honda customer service at 1-800-382-2238. Honda's number for this recall is JK6.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
2EA25004 · No Restart After Auto Start/stop Engages
Opened Mar 26, 2025 · No close date supplied
Status: open (inferred from source dates) · Engine And Engine Cooling:engine; Engine And Engine Cooling:engine:crank/camshaft Position Sensor; Engine And Engine Cooling:engine:engine Control Module (ecu/ecm):software; Engine And Engine Cooling:engine:hard Parts Internal/mechanical
On June 3, 2022, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE22005 after the agency received VOQs and several field reports concerning the Auto Idle Stop (AIS) feature on 2016-2019MY Honda Pilot vehicles. The complaints allege that the engine fails to restart on its own from a complete stop at a traffic light or road intersection with the AIS function engaged. The subject vehicles are equipped with a 3.5L engine with a 9-speed automatic transmission. On January 6, 2023, Honda released service bulletins 23-008 and 23-009. These service bulletins address the failure to restart issue in the 2016-2019MY Honda Pilot vehicles, as well as the 2015-2020 Acura TLX, 2016-2020 Acura MDX, 2019-2022 Honda Passport, and 2020-2023 Honda Ridgeline vehicles. The repair outlined in the service bulletins is a two-stage countermeasure to remedy the issue. The first stage is a Programmed Fuel Injection (“PGM-FI”) software update. The second stage is only deployed if the software update fails to remedy the issue. The second stage, depending on the model and model year, consists of replacement of the starter assembly, starter relays, and a valve adjustment. Additionally, Honda extended the warranty coverage to 10 years with unlimited mileage for vehicles requiring the second stage component replacement. ODI continues to receive complaints of the AIS failure to restart, with many complainants alleging the campaign countermeasures had been completed.NHTSA has reviewed Honda's Information Request Letter responses involving warranty claims, lawsuits, and consumer complaints in addition to ODI's own data. This Engineering Analysis is being opened to further consider the potential safety defect, including gathering additional data regarding Honda’s service campaign efficacy. ODI is additionally expanding the scope to encompass all vehicles addressed in Honda’s service bulletins 23-008 and 23-009 as well as newer model year vehicles, which are substantially similar to the vehicles covered by the service campaign. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.
Additional source detail variants (4)
Engine And Engine Cooling:engine:crank/camshaft Position Sensor
On June 3, 2022, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE22005 after the agency received VOQs and several field reports concerning the Auto Idle Stop (AIS) feature on 2016-2019MY Honda Pilot vehicles. The complaints allege that the engine fails to restart on its own from a complete stop at a traffic light or road intersection with the AIS function engaged. The subject vehicles are equipped with a 3.5L engine with a 9-speed automatic transmission. On January 6, 2023, Honda released service bulletins 23-008 and 23-009. These service bulletins address the failure to restart issue in the 2016-2019MY Honda Pilot vehicles, as well as the 2015-2020 Acura TLX, 2016-2020 Acura MDX, 2019-2022 Honda Passport, and 2020-2023 Honda Ridgeline vehicles. The repair outlined in the service bulletins is a two-stage countermeasure to remedy the issue. The first stage is a Programmed Fuel Injection (“PGM-FI”) software update. The second stage is only deployed if the software update fails to remedy the issue. The second stage, depending on the model and model year, consists of replacement of the starter assembly, starter relays, and a valve adjustment. Additionally, Honda extended the warranty coverage to 10 years with unlimited mileage for vehicles requiring the second stage component replacement. ODI continues to receive complaints of the AIS failure to restart, with many complainants alleging the campaign countermeasures had been completed.NHTSA has reviewed Honda's Information Request Letter responses involving warranty claims, lawsuits, and consumer complaints in addition to ODI's own data. This Engineering Analysis is being opened to further consider the potential safety defect, including gathering additional data regarding Honda’s service campaign efficacy. ODI is additionally expanding the scope to encompass all vehicles addressed in Honda’s service bulletins 23-008 and 23-009 as well as newer model year vehicles, which are substantially similar to the vehicles covered by the service campaign. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.
Engine And Engine Cooling:engine:engine Control Module (ecu/ecm):software
On June 3, 2022, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE22005 after the agency received VOQs and several field reports concerning the Auto Idle Stop (AIS) feature on 2016-2019MY Honda Pilot vehicles. The complaints allege that the engine fails to restart on its own from a complete stop at a traffic light or road intersection with the AIS function engaged. The subject vehicles are equipped with a 3.5L engine with a 9-speed automatic transmission. On January 6, 2023, Honda released service bulletins 23-008 and 23-009. These service bulletins address the failure to restart issue in the 2016-2019MY Honda Pilot vehicles, as well as the 2015-2020 Acura TLX, 2016-2020 Acura MDX, 2019-2022 Honda Passport, and 2020-2023 Honda Ridgeline vehicles. The repair outlined in the service bulletins is a two-stage countermeasure to remedy the issue. The first stage is a Programmed Fuel Injection (“PGM-FI”) software update. The second stage is only deployed if the software update fails to remedy the issue. The second stage, depending on the model and model year, consists of replacement of the starter assembly, starter relays, and a valve adjustment. Additionally, Honda extended the warranty coverage to 10 years with unlimited mileage for vehicles requiring the second stage component replacement. ODI continues to receive complaints of the AIS failure to restart, with many complainants alleging the campaign countermeasures had been completed.NHTSA has reviewed Honda's Information Request Letter responses involving warranty claims, lawsuits, and consumer complaints in addition to ODI's own data. This Engineering Analysis is being opened to further consider the potential safety defect, including gathering additional data regarding Honda’s service campaign efficacy. ODI is additionally expanding the scope to encompass all vehicles addressed in Honda’s service bulletins 23-008 and 23-009 as well as newer model year vehicles, which are substantially similar to the vehicles covered by the service campaign. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.
Engine And Engine Cooling:engine:hard Parts Internal/mechanical
On June 3, 2022, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE22005 after the agency received VOQs and several field reports concerning the Auto Idle Stop (AIS) feature on 2016-2019MY Honda Pilot vehicles. The complaints allege that the engine fails to restart on its own from a complete stop at a traffic light or road intersection with the AIS function engaged. The subject vehicles are equipped with a 3.5L engine with a 9-speed automatic transmission. On January 6, 2023, Honda released service bulletins 23-008 and 23-009. These service bulletins address the failure to restart issue in the 2016-2019MY Honda Pilot vehicles, as well as the 2015-2020 Acura TLX, 2016-2020 Acura MDX, 2019-2022 Honda Passport, and 2020-2023 Honda Ridgeline vehicles. The repair outlined in the service bulletins is a two-stage countermeasure to remedy the issue. The first stage is a Programmed Fuel Injection (“PGM-FI”) software update. The second stage is only deployed if the software update fails to remedy the issue. The second stage, depending on the model and model year, consists of replacement of the starter assembly, starter relays, and a valve adjustment. Additionally, Honda extended the warranty coverage to 10 years with unlimited mileage for vehicles requiring the second stage component replacement. ODI continues to receive complaints of the AIS failure to restart, with many complainants alleging the campaign countermeasures had been completed.NHTSA has reviewed Honda's Information Request Letter responses involving warranty claims, lawsuits, and consumer complaints in addition to ODI's own data. This Engineering Analysis is being opened to further consider the potential safety defect, including gathering additional data regarding Honda’s service campaign efficacy. ODI is additionally expanding the scope to encompass all vehicles addressed in Honda’s service bulletins 23-008 and 23-009 as well as newer model year vehicles, which are substantially similar to the vehicles covered by the service campaign. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.
Engine And Engine Cooling:engine
On June 3, 2022, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE22005 after the agency received VOQs and several field reports concerning the Auto Idle Stop (AIS) feature on 2016-2019MY Honda Pilot vehicles. The complaints allege that the engine fails to restart on its own from a complete stop at a traffic light or road intersection with the AIS function engaged. The subject vehicles are equipped with a 3.5L engine with a 9-speed automatic transmission. On January 6, 2023, Honda released service bulletins 23-008 and 23-009. These service bulletins address the failure to restart issue in the 2016-2019MY Honda Pilot vehicles, as well as the 2015-2020 Acura TLX, 2016-2020 Acura MDX, 2019-2022 Honda Passport, and 2020-2023 Honda Ridgeline vehicles. The repair outlined in the service bulletins is a two-stage countermeasure to remedy the issue. The first stage is a Programmed Fuel Injection (“PGM-FI”) software update. The second stage is only deployed if the software update fails to remedy the issue. The second stage, depending on the model and model year, consists of replacement of the starter assembly, starter relays, and a valve adjustment. Additionally, Honda extended the warranty coverage to 10 years with unlimited mileage for vehicles requiring the second stage component replacement. ODI continues to receive complaints of the AIS failure to restart, with many complainants alleging the campaign countermeasures had been completed.NHTSA has reviewed Honda's Information Request Letter responses involving warranty claims, lawsuits, and consumer complaints in addition to ODI's own data. This Engineering Analysis is being opened to further consider the potential safety defect, including gathering additional data regarding Honda’s service campaign efficacy. ODI is additionally expanding the scope to encompass all vehicles addressed in Honda’s service bulletins 23-008 and 23-009 as well as newer model year vehicles, which are substantially similar to the vehicles covered by the service campaign. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.
EA19001 · Electrical Overstress
Opened Apr 19, 2019 · Closed Sep 19, 2024
Status: closed (inferred from source dates) · Air Bags: Air Bag/restraint Control Module
The Office of Defects Investigation (ODI) opened this investigation to determine if the failure of airbags to deploy during severe crashes, in certain vehicles, was the result of a safety related defect. During the investigation a complex failure was studied that can result in non-deployment of subject vehicle air bags and other restraint system devices in severe crash events. The subject vehicles may be equipped with an airbag control unit (ACU) for the supplemental restraint system (SRS) Electronic Control Unit (ECU) manufactured by ZF-TRW. The ECU receives signals from crash sensors mounted in the vehicle and deploys the vehicle air bags and seat belt pretensioners in accordance with manufacturer design specifications. The ECU in the subject vehicles contains a model DS84 application-specific integrated circuit (ASIC) which controls the communication of the crash sensor signal, firing commands (i.e., when to deploy the airbag(s) and/or pretensioners), and fault information (e.g., diagnostic trouble codes). In September 2016, FCA announced recall 16V-668 for certain model year (MY) 2010 to 2014 Chrysler, Dodge and Jeep products manufactured with the subject ZF-TRW ACU. In this recall, FCA discussed an EOS condition that resulted in a failure of the subject DS84 ASIC, which caused air bag non-deployment. FCA noted that the defect condition had only been observed in vehicles equipped with sensor harnessing routed across the front of the vehicle. Other FCA vehicles that also used the subject ACU, but were not equipped with cross-car harnessing, had not experienced EOS failures, despite similar time in service. During the course of this investigation, ODI sent two separate Information Request (IR) letters to six vehicle manufactures (including FCA, Hyundai, Honda, Kia, Mitsubishi, and Toyota) and one IR letter to ZF-TRW. These IR letters resulted in ODI receiving comprehensive data from these manufacturers and suppliers. Studies of this data found that the DS84 ASIC does not have sufficient protection against negative electrical transients or electrical overstress (“EOS”) that can be generated in certain severe crashes. An electrical transient occurs when the electrical power supplied to a circuit changes momentarily over a short duration of time. In these severe crash cases, the crash sensors and other powered wiring can be damaged and short circuited so as to create a negative electrical transient of sufficient intensity and duration (that are outside the vehicle manufacturer's specification) to damage the ASIC before the restraint device deployment signal is received by the SRS ECU. This damaged signal can lead to incomplete or nondeployment of the air bags and/or pretensioners. Airbag non-deployment and/or lack of pretensioner operation can increase the risk or severity of injury in a crash.A total of 8 fatalities and 14 injuries were associated with known EOS events. The common element in all investigated manufacturers vehicles is the SRS ECU containing a DS84 ASIC manufactured by ZF-TRW. The risk associated with the ASIC is equally shared among all OEMS involved in the investigation. The actual real-world risk can be mitigated by other factors which were assessed by ODI during this investigation. The first mitigating factor involves protections built into the ACU design which protect the DS84 ASIC from damage. There are multiple strategies and levels of protection employed by different OEMs that provide effective EOS mitigation. The two most common strategies at the ACU level are circuit protection diodes on the remote senor signal lines, and current limiting resistors that protect critical components. The second mitigating factor is found at the vehicle level and involves the location and routing of the wires leading from the crash sensors to the SRS ECU. If the wires are well protected in a crash and are not routed with other power wires carrying large currents, the risk for an EOS event is significantly reduced or eliminated. These design specific factors combine to produce a spectrum of risk for the vehicles equipped with ACUs using the DS84 ASIC. Given the many of years of field exposure, it is possible to divide the subject population into two groups; vehicles which have experienced EOS events, and vehicles which have not experienced EOS field events. Four of the six OEMs involved in this investigation have experienced EOS field events on at least one of their models equipped with a DS84 ASIC. All vehicle models (including the Toyota models identified in the Failure Report Summary of the opening resume for this investigation) with field events have been recalled. In an abundance of caution, ODI kept this investigation open five years to monitor field performance and did not identify any field events on vehicles not included in existing safety recalls. Given the spectrum of risk identified in this investigation and that all vehicles with a demonstrated unreasonable risk have been recalled, ODI is closing this investigation. ODI is closing this investigation with the following manufacturer safety recalls: 16V-668, 18E-043, 18V-137, 18V-363, and 20V-024. With the recall actions taken by the subject vehicle and equipment manufacturers, this investigation is closed. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exists on other model or model year vehicles outside of the recall scopes. The agency reserves the right to take further action if warranted by the circumstances.